International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 07 Issue: 06 | June 2020
p-ISSN: 2395-0072
www.irjet.net
2D ANALYSIS OF NACA 4412 SERIES WIND BLADE AT DIFFERENT ANGLE OF ATTACK Upadhyay Harsh KIritbhai1, Chandresh J. Vyas2 1U.G.
Student, Dept. of Mechanical Engineering, Faculty of Technology, Marwadi University, Rajkot, Gujarat, India 2Assistant Professor, Dept. of Mechanical Engineering, Faculty of Technology, Marwadi University, Rajkot, Gujarat, India ---------------------------------------------------------------------***----------------------------------------------------------------------
Abstract - The wind turbine blade is very important part of the rotor. Wind turbines provides an alternative way of generating energy from the power of wind. Extraction of energy depends on the design of blade. At windy places where the wind speeds are so high, sufficient amount of energy can be harnessed by making use of wind turbines. The blades of such turbines are designed that they generate lift from wind and thus rotate. In this work, the wind turbine blade is modelled 2d in ansys design modeler using airfoil coordinates and then apply velocity at different angle of attack. The lift and drag forces are calculated at different angle of attack varying from 0◦ to 20◦. Key Words: Airfoil, Ansys, Angle of attack, Lift force , Drag force, Wind turbine
1. INTRODUCTION Wind turbine is a device that converts kinetic energy from the wind into electrical power. A turbine converts the kinetic energy of the wind to useful mechanical energy. This energy could be used in mechanical form or turn generator turbines and provide electricity. Just like in the hydropower systems, wind energy is harnessed through conversion of the wind kinetic energy to mechanical energy. It is a mechanical machine that converts kinetic energy of the fast moving winds into electrical energy.
Fig 1: Components of horizontal axis wind turbine
On the basis of axis of rotation of the blades, it is divided into two parts
2. LITERATURE REVIEW
1. Horizontal axis wind turbine (HAWT) 2. Vertical axis wind turbine (VAWT)
Airfoil :An airfoil is defined as the cross section of the body that is placed in an airstream in order to produce a useful aerodynamic force in the most efficient manner possible. The cross section of wings, propeller blades, windmill blades, compressor and turbine blades in a jet engine, and hydrofoils are example of airfoils. The basic geometry of an airfoil is shown in Figure 2 [1]
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